olsen



(No Model.) 2 Sheets-Sheet 14.

G. OLSEN.

MINING GAR. N0.'270,689. Patented Jan. 16,1883.

2 Sheets-Sheet 2-- (No Model.)

G. OLSEN.

MINING UAR.

Patented Jan.16,1883.

UNITED STATES PATENT OFFICE.

GUSTAV OLSEN, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO EDWARD A. RIX,OF SAME PLACE.

OF ON E-HALF MINING-CAR.

SPECIFICATION formingpart of Letters Patent No. 270,689, dated January16, 1883.

7 Application filed October 16, 1882. (No model.)

Be it known that I, GUSTAV OLSEN, of the city and county of SanFrancisco, State of California, have invented an Improved Minin g-Gar;and I hereby declare the following to be a full, clear, and exactdescription thereof.

My invention relates to certain i mprovements in that class of carswhich are employed to transport ore in mines and it consistsin' a meansfor mounting the car-body upon the turn-table or track, by which thecar, and especially its bottom, is relieved from the strain of theconnecting-bolt, and the weight of ore within it will be supported bysupplemental bars which are secured beneath the bottom of the car, andthrough which the pivotal bolt passes, as will be more fully explainedby reference. to the accompanying drawings, in which-.

Figure l is a view of the car tilted upon the truck. Fig. 2 is aperspective view of angleiron strips and turn-table. Fig. 3 is aperspective view of bottom of car.

A is the body of the car, which is. usually formed of heavy sheet orplate iron riveted together, but may also be made of wood or othermaterial. This body has usually been riveted to a bar which extendsacross from side to side about the middle ofthe bottom, having the twoends bent downward, and these ends are perforated to receive pins orbolts, which connect them with the upturned ends of a similar transversebar secured to the turn-table, so that when the car-body is in theproper position to dump it may turn aboutthese pins, being thus tiltedto such an angle that the load will slide out. Theobjection to thisconstruction is, first, that the rivets by which the cross bar issecured to the bottom of the car-body will easily tear out, and thusdamage the car; and, secondly, that the bolts or rivets about which itis tilted to discharge it are soon cut off. In my invention two strips,B B, of angle-iron, extend longitudinally beneath the car-body, and thusstrengthen it, being bolted 5 the turn-table E, as shown. The ends D arerounded, as shown in Fig. 2, having the shaft as a center. The roundedends come in contact with the horizontal portion of the angleirons B, sothat the latter rests and turns upon them when the car is tilted to bedumped, thus taking all strain off the bottom of the car and relievingthe shaft Got" the weight of the car, so that it is not liable to be cutor worn off.

The turn-table E turns upon a king-bolt, F, and it is supported upon acircular flange, G, of iron, secured to the running-gear H, so as torelieve it from strain in turning. By this means of connecting thebottom of the car'- body with the turn-table and bracing and supportingit upon the angle-iron bars I produce a much stronger ear, and one whichwill resist the strains brought upon it, the bottom not being liable tobe torn out or injured.

Havingthus described myinvention, what I claim as new, and desire tosecure by Letters Patent, is-

In a mining-car, the angle-iron strips B B, secured to the bottom of thecar by their horizontalflan ges, and having their vertical flangesperforated to receive a bolt, in combination with the bolt 0 and the barE, provided with the upturned and rounded ends D D, through which thebolt 0 passes, and which furnish. hearings on the under side of thehorizontal flanges of the angle-iron strips and receive the strain asthe car tips in any direction, as herein set forth.

In witness whereofI hereunto set my hand.

GUSTAV OLSEN.

Witnesses:

WILLIAM WYNN, A. G. KITTREDGE.

